>Unless you seed the rand() function by using a negative number, like rand(-1), you will ALWAYS get the same series of values.
If I do:
?rand(1)
?rand()
?rand()
?rand()
I will always get the same values.
But when I do:
?rand(0)
?rand()
?rand()
?rand()
I always get different values.
So what's the difference between rand(-1) and rand(0)?